REFERENCES 423 



9.6. References 



[1] Bean, B. R., and G. D. Thayer (1959), On models of the atmospheric radio refrac- 

 tive index, Proc. IRE 47, No. 5, 740-755. 



[2] Smithsonian Meteorological Tables (1951), Table 63, Sixth Revised Ed. (Wash- 

 ington, D.C.). 



